The VPL-SW525C offers simultaneous dual-touch annotation capability on the projection screen with the use of supplied pen devices and drawing software. Combined with its ultra short throw projection, it is a great fit for launching interactive lessons in a classroom or establishing instant communication space in a corporate environment. The VPL-SW525C delivers a large image from an extremely short distance (i.e.; an 80-inch image can be achieved from 19 inches distance from the screen), which helps presenter to avoid glare from the projector when standing in front of the screen. It offers WXGA projection with powerful 2500 lumens color light output. Auto lamp dimming, max 6000h expected lamp replacement timing, V:4% H:2% optical lens shift and supplied wall mount bracket helps reduce total cost of ownership.